Given a = 2x + y, B = 2x-y, calculate A2-B2
A2-B2=(2x+y)2-(2x-y)2=(4x2+4xy+y2)-(4x2-4xy+y2)=4x2+4xy+y2-4x2+4xy-y2=8xy.
RELATED INFORMATIONS
- 1. First simplify, then evaluate: (a + 2) (A-2) + 2 (the square of a + 3), where a = 1 / 3. Given a = 2x + y, B = 2x-y, calculate the square of a-b
- 2. Calculation of 2x + Y / 4x square - 4xy + y square / (4x square - y Square) - necessary process
- 3. What is the square of (2x + Y-1) (2x-y-1) =? And (3x + y-5a)
- 4. Why is the square of two numbers equal to the sum of two numbers Why is the square of six minus the square of five equal to five plus six?
- 5. Which two perfect squares add up to 25 out of 81
- 6. The sum of the squares of two numbers is equal to one number. Can we solve it by square root of two numbers
- 7. How to add the squares? The quadratic power of x plus the quadratic power of X. and the square of constant and unknown How about the quadratic power of 9x + 4x
- 8. What is the sum of the square numbers of 1 in 1998? It's 11111111 ×1111111…… Not 1 × 1 + 1 × 1 + 1 × 1
- 9. 13 is made up of the sum of the squares of which two numbers?
- 10. What is the sum of even numbers within 100? Formula?
- 11. Calculate the square of (a + B + C), and use its conclusion to calculate the square of (2x - y + 3Z)
- 12. Given a = 2x + y, B = 2x-y, calculate A2-B2
- 13. Calculate: (the square of x-2x + 1-y) divided by (x + Y-1)
- 14. A = 2x-y, B = x + y, calculation: a square - 2Ab Multiplication formula
- 15. : (x + y) (x + y) ^ - (x + y) (2x + y) ^ calculated by complete square
- 16. Calculate the square of (X-Y) - 2x (X-Y)
- 17. Calculate (square of x-2x + 1-y) / (x + y + 1)
- 18. It is proved that when n is an integer, the square of the square difference (2n + 1) of two consecutive odd numbers is a multiple of 8
- 19. The square of any odd number minus 1 is a multiple of 8. Why?
- 20. Is the square of any odd number minus 1 a multiple of 8,